I like Wysong, however my allergy girl does the best on Nutrisca salmon and chickpea as a base combined with homemade http://www.homeovet.net/dynamic/php/downloads/dog-c8470f2c75dbe4b683205c3919ee2310/dog_diet_complete.pdf
She’s sees a specialist once a year (had the skin testing) and receives immunotherapy.
http://www.allergydogcentral.com/2011/06/30/dog-allergy-testing-and-allergy-shots/#comment-1283
If you decide to go the homeopathic route, http://www.vitalanimal.com
Home
BTW: I tried all the diet changes and nothing worked till she saw the specialist. Dogs can have both environmental allergies and food sensitivities, it is often difficult to figure out which is causing what.
